555431485440 has 896 divisors, whose sum is σ = 2055802799232. Its totient is φ = 126835752960.

The previous prime is 555431485363. The next prime is 555431485451. The reversal of 555431485440 is 44584134555.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 555431485440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3068682150 + ... + 3068682330.

It is an arithmetic number, because the mean of its divisors is an integer number (2294422767).

Almost surely, 2^555431485440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555431485440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027901399616).

555431485440 is an abundant number, since it is smaller than the sum of its proper divisors (1500371313792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555431485440 is a wasteful number, since it uses less digits than its factorization.

555431485440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 48.

The spelling of 555431485440 in words is "five hundred fifty-five billion, four hundred thirty-one million, four hundred eighty-five thousand, four hundred forty".